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-rw-r--r--include/ruby/missing.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/ruby/missing.h b/include/ruby/missing.h
index d12f496..24156bf 100644
--- a/include/ruby/missing.h
+++ b/include/ruby/missing.h
@@ -242,6 +242,10 @@ RUBY_EXTERN int ruby_close(int);
RUBY_EXTERN void setproctitle(const char *fmt, ...);
#endif
+#ifndef HAVE_EXPLICIT_BZERO
+RUBY_EXTERN void explicit_bzero(void *b, size_t len);
+#endif
+
RUBY_SYMBOL_EXPORT_END
#if defined(__cplusplus)